Advisoriesby IbisGitLabCVE-2026-18252
GitLab: untrusted functionality included
Fix: upgrade to 19.1.7 or later (3 fixed versions below)
GitLab has remediated an issue in GitLab EE affecting all versions from 18.9 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with developer-role permissions could have executed arbitrary commands in a CI context, due to the Claude agent processing configuration from a user-controlled source.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| GitLab Product | >= 18.9, < 19.1.7 | 19.1.7 |
| >= 19.2, < 19.2.5 | 19.2.5 | |
| >= 19.3, < 19.3.1 | 19.3.1 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-829